Valve mechanism for liquid-vending machines



Feb. 12 1924. v 1,483,983

J. FRITSCHE Original Filed Sept 16. 1919 l I l 1 H51 1 g 45 I i\ 1 g i 1 I 4/ 10 l I 1? 41 2/ 15 Z0 J/Z'QIZ 54 .fizr/km' 0? i421 10 Z-Z i 4 15 5/ /jz 5% v M 59 n 5i z 2 \y/ ml lzmom 'BY .%,'M

ATTORNEYS.

\ Original application filed September 16, 1919, Serial No. 324,154. Divided and 24, 1922. Serial No. 563,201., v 3 I Patented Feb. 12, 1924.

A UNITED STATES JOHN rnrrscnn, or 'ivrnaioN, PENNSYLVANIA.

VALVE MECHANISM ron LIQUID- E DI G MACHINES.

To all whomct may concern:

Be it known that I, JOHN Fnirsonn, a

I citizen of the United States, residing-at Merion, county of Montgomery, State of Pennsylvania, have invented a new and useful Valve Mechanism, for Liquid-Vending Machines, ofwhich the following isa specification'. I

In a copending application Serial No. 324,154, filed September-16th,.1919,and of which the present application is adivision, I have described and broadly-claimed a novel liquid vending machine which is adapted to vend a plurality of liquids of different natures upon the insertion of a predetermined check or coin, so that a measured quantity of each liquid will be discharged from the machine.

My present invention relates to the'novel valve mechanism for controlling the discharge of liquid from the machine and tothe above ends my invention comprehends a novel construction and arrangement of valve mechanism which, as will be understood by reference to my parent application aforesaid, is actuated by a manually actuated handle which becomes operative to actuate the valvemechanism onthe; insertion into the machine of a coin orcheck ofthe proper denomination. v I j Other novel features of construction and advantage will hereinafter more fully appear in the detailed-description and the appended claims. i

For the purpose of illustrating my invention, I have shownin the accompanying drawings a typical embodiment thereof which is at present preferred by me, since this embodiment will be found in practice to give satisfactory and-reliable results. It is, however, tobe understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of theseinstrumentalities as herein shown and described Figure 1 represents, in sectional elevation, a portion of a liquid vending machine in conjunction with which a valve embodying my invention is employed.

this application filed ma Figure 2- :r epresents a section on lineQ-Q cates with a valvemech'anism 4 embodying my IHVQIllDlOD. The valve mechanism semployed in conjunction' with apair'of meas uring cups. 5 and fifrespectively,each. of which is provided with its respective vent Pipes 7 8,. respectively. The valve mechanism 1 comprises a" casing 9 having the inlet 10 and the outlet 11' and provided with the laterally extending branches12and13 which communicate "respectively with the measuring cup 5 and the measuring cup 16.

Thacasing 9 s pr ded/ ith a laterally extending cylindricalbore 1'5 'at one end and 16 at its opposite "end each of which 1 opens through the juxtaposed wall of the valve casing and areconnected by means of atapering valve seat 1'? which latter contributes with thecylindrical bore 16 to form a shoulder 18.

19 designates conical valve adapted to engage the valve seat.17 and provided with the ports 20'and 21. The valve 19 has. projectingfrom it a stem 22 through which extends laterally .a pin23 which is adapted'to bereceived in the slots 24 of a shaft- 25 which latter is also recessed, as at26, to re I ceive the stem 22. Theshaft 25 is suitably journalled in the framework of the ma- .chine and has connected withit a driven gear 27. The shaft 25 is provided with an antifriction bearing 28 such as, for example, l a ball bearing, whichrevolves within the cylindrical bore 15 of the valve casing. The valve 19 has extending from its forward end the valve stem 29 on which is mounted a ball bearing 30whichis secured in position by means of nuts31 one of which serves as a locknut. I I I I I It will be seen that-when the nuts 31 are tightened the ballbearingg-BO which abuts against the shoulder 18 will' retain the valve I means of tastening devices 33.

36 through which thesha'ft'25 extends and in which if desired may have a bearing,

Each of the branches 1'2 and 13 is connected in a similar manner with respect to its resp'ec't'ive measuring cup, the branch 13, for example, being internally threaded at its outer end, as at 37, in, order to receive the threaded end of a coupling 38 which is seated against the lower endof a flanged nipple 39 which is in threaded engagement with the measuring cup" G'and a nut L0 is provided which secures the coupling member 38 and the nipple 39 together. The threadedboss ll througliwhich thepassage 10 is formed passes through the outer wall the double walled container and is provided with a nut 42 which secures it in position, said boss 41 being in threaded engagement with thepipe 4-3 which coinmunicateswith the outlet 3 I v My present type of valve is intended to'be employedin'conjunction with a liquid vending machine which is manually controlled, the measuringcups being surrounded by the insulating. material or the. temperature changing medium in the space between the inner and outer walls of the liquid container. The valve mechanism which controls the passage 0t liquid to be vended' from a liquid container into the measuring cups. and the discharge from a measuring cup isin close proximity to such liquid container so that the liquid will be retained in a heated or cold condition at substantially the same temperature as the temperature or the liquid in the liquid container;

In d'evices of this character as hereto-fore employed where it is necessary to employ a sourceof heat to maintain the liquid'to be dispensed in a heated condition difficulty has always arisen owing to the binding and sticking of the valves. It has been found in practice that when a valve constructed in accordance with my present invention is employed this binding and sticking oi? the valve does not takeplace.

It will now be apparent that I have devised a new and useful valve mechanism for liquid vending machines which embodies the features of advantage enumerated as desirable n the statement of the invention and the above description, and while I have, in the present instance, shown and described a preferred embodiment thereof which will it 'ra'ctice satisfact y and reliable ms to be understood that this embodiment is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as no i and desire to secure by Letters Patent, is:

1. In a liquid vending machine, a valve casing having a plurality of ports and provided with a bore having a tapered valve seat therebetween and through which said ports open, said bore having a cylindrical portion forming with said seat a shoulder a conical valve to engage said seat, aball bearing, and means to secure said ball bearingto's aid valve whereby said ball bearing engagessaid shoulder and ser'vesto secure said valve in proper relation withrespect to said ports and also as an antiiriction bearing.

2; In a liquid vending machine, a valve casing having a pluralityof ports, a longitudinal bore provided with a tapered valve seat into which said ports open and cylindrical portions at each end, one of which forms with said valve seat a shoulder, a valve to engage said seat and having a plurality of ports to be brought into register with predetermined ports in the casing, and a ball bearing for said valve at each end thereof, one of said bearings engaging said shoulder and serving to retain said valve in engagement with said seat.

3. A valve mechanism, comprising a valve casing, having cylindrical bores of different diameters, a tapered valve seat forming. with one of said cylindrical bores a shoulder, an inlet and an outlet port, communicating with said seat, and a plurality of passages communicating with said seat, a two-way valve engaging said seat and having, a stem at each end, a ball bearing carried by one stem and engaging said shoulder to retain said valve, in position, and driving means to interlock with said other stem.

l. A valve mechanism, comprising a casing having a differential bore including a tapered valve seat, a cylindrical portion forming with said" seat a shoulder and provided with a main inlet port, an outlet port and a plurality 0t branches communieating with said seat, a two-way valve ongaging said seat, a'ball bearing for said valve engaging said shoulder to retain it in position, a pin carried by said valve, :1. drivenshaft having means to engage said pin. and a ball' bearing for said driven shaft. I

5. A valve mechanism, comprising a valve casing having a differential bore opening through opposite ends forming a shoulder and providedwith a valve seat, a multiple way valve engaging said seat, a ball hearing carried by said valve and adapted to engage said shouldep-to secure it in posivalve, said casing having ports controlled tion, said valve having a stem at one end, by said valve. a driven shaft having means to interlock with said stem, a ball bearing within said JOHN FRITSCHE' 5 bore for said driven shaft, and a closure Witnesses:

for one end of said bore to retain said H. S. FAIRBANKS,

shaft in operative engagement with said O. D. MOVAY. 

